| Step |
Hyp |
Ref |
Expression |
| 1 |
|
itscnhlinecirc02p.i |
|- I = ( 0 ..^ 2 ) |
| 2 |
|
itscnhlinecirc02p.e |
|- E = ( RR^ ` I ) |
| 3 |
|
itscnhlinecirc02p.p |
|- P = ( RR ^m I ) |
| 4 |
|
itscnhlinecirc02p.s |
|- S = ( Sphere ` E ) |
| 5 |
|
itscnhlinecirc02p.0 |
|- .0. = ( I X. { 0 } ) |
| 6 |
|
itscnhlinecirc02p.l |
|- L = ( LineM ` E ) |
| 7 |
|
itscnhlinecirc02p.d |
|- D = ( dist ` E ) |
| 8 |
1 2 3 4 5 6 7
|
itscnhlinecirc02plem3 |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> 0 < ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ^ 2 ) - ( 4 x. ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) ) ) |
| 9 |
1 3
|
rrx2pyel |
|- ( X e. P -> ( X ` 1 ) e. RR ) |
| 10 |
9
|
3ad2ant1 |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( X ` 1 ) e. RR ) |
| 11 |
10
|
adantr |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( X ` 1 ) e. RR ) |
| 12 |
1 3
|
rrx2pyel |
|- ( Y e. P -> ( Y ` 1 ) e. RR ) |
| 13 |
12
|
3ad2ant2 |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( Y ` 1 ) e. RR ) |
| 14 |
13
|
adantr |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( Y ` 1 ) e. RR ) |
| 15 |
11 14
|
resubcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( X ` 1 ) - ( Y ` 1 ) ) e. RR ) |
| 16 |
15
|
resqcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) e. RR ) |
| 17 |
1 3
|
rrx2pxel |
|- ( Y e. P -> ( Y ` 0 ) e. RR ) |
| 18 |
17
|
3ad2ant2 |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( Y ` 0 ) e. RR ) |
| 19 |
18
|
adantr |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( Y ` 0 ) e. RR ) |
| 20 |
1 3
|
rrx2pxel |
|- ( X e. P -> ( X ` 0 ) e. RR ) |
| 21 |
20
|
3ad2ant1 |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( X ` 0 ) e. RR ) |
| 22 |
21
|
adantr |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( X ` 0 ) e. RR ) |
| 23 |
19 22
|
resubcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( Y ` 0 ) - ( X ` 0 ) ) e. RR ) |
| 24 |
23
|
resqcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) e. RR ) |
| 25 |
16 24
|
readdcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) e. RR ) |
| 26 |
10 13
|
resubcld |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( ( X ` 1 ) - ( Y ` 1 ) ) e. RR ) |
| 27 |
26
|
resqcld |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) e. RR ) |
| 28 |
18 21
|
resubcld |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( ( Y ` 0 ) - ( X ` 0 ) ) e. RR ) |
| 29 |
28
|
resqcld |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) e. RR ) |
| 30 |
10
|
recnd |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( X ` 1 ) e. CC ) |
| 31 |
13
|
recnd |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( Y ` 1 ) e. CC ) |
| 32 |
|
simp3 |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( X ` 1 ) =/= ( Y ` 1 ) ) |
| 33 |
30 31 32
|
subne0d |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( ( X ` 1 ) - ( Y ` 1 ) ) =/= 0 ) |
| 34 |
26 33
|
sqgt0d |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> 0 < ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) ) |
| 35 |
28
|
sqge0d |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> 0 <_ ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) |
| 36 |
27 29 34 35
|
addgtge0d |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> 0 < ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) ) |
| 37 |
36
|
gt0ne0d |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) =/= 0 ) |
| 38 |
37
|
adantr |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) =/= 0 ) |
| 39 |
|
2re |
|- 2 e. RR |
| 40 |
39
|
a1i |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> 2 e. RR ) |
| 41 |
11 19
|
remulcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( X ` 1 ) x. ( Y ` 0 ) ) e. RR ) |
| 42 |
22 14
|
remulcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( X ` 0 ) x. ( Y ` 1 ) ) e. RR ) |
| 43 |
41 42
|
resubcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) e. RR ) |
| 44 |
23 43
|
remulcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) e. RR ) |
| 45 |
40 44
|
remulcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) e. RR ) |
| 46 |
45
|
renegcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) e. RR ) |
| 47 |
43
|
resqcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) e. RR ) |
| 48 |
|
rpre |
|- ( R e. RR+ -> R e. RR ) |
| 49 |
48
|
ad2antrl |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> R e. RR ) |
| 50 |
49
|
resqcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( R ^ 2 ) e. RR ) |
| 51 |
16 50
|
remulcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) e. RR ) |
| 52 |
47 51
|
resubcld |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) e. RR ) |
| 53 |
|
eqidd |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ^ 2 ) - ( 4 x. ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) ) = ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ^ 2 ) - ( 4 x. ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) ) ) |
| 54 |
25 38 46 52 53
|
requad2 |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( E! s e. ~P RR ( ( # ` s ) = 2 /\ A. y e. s ( ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( y ^ 2 ) ) + ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) x. y ) + ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) = 0 ) <-> 0 < ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ^ 2 ) - ( 4 x. ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) ) ) ) |
| 55 |
8 54
|
mpbird |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> E! s e. ~P RR ( ( # ` s ) = 2 /\ A. y e. s ( ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( y ^ 2 ) ) + ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) x. y ) + ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) = 0 ) ) |
| 56 |
|
0xr |
|- 0 e. RR* |
| 57 |
56
|
a1i |
|- ( R e. RR+ -> 0 e. RR* ) |
| 58 |
|
pnfxr |
|- +oo e. RR* |
| 59 |
58
|
a1i |
|- ( R e. RR+ -> +oo e. RR* ) |
| 60 |
|
rpxr |
|- ( R e. RR+ -> R e. RR* ) |
| 61 |
|
rpge0 |
|- ( R e. RR+ -> 0 <_ R ) |
| 62 |
48
|
ltpnfd |
|- ( R e. RR+ -> R < +oo ) |
| 63 |
57 59 60 61 62
|
elicod |
|- ( R e. RR+ -> R e. ( 0 [,) +oo ) ) |
| 64 |
|
eqid |
|- { p e. P | ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) } = { p e. P | ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) } |
| 65 |
1 2 3 4 5 64
|
2sphere0 |
|- ( R e. ( 0 [,) +oo ) -> ( .0. S R ) = { p e. P | ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) } ) |
| 66 |
63 65
|
syl |
|- ( R e. RR+ -> ( .0. S R ) = { p e. P | ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) } ) |
| 67 |
66
|
ad2antrl |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( .0. S R ) = { p e. P | ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) } ) |
| 68 |
67
|
ad2antrr |
|- ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) -> ( .0. S R ) = { p e. P | ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) } ) |
| 69 |
68
|
ad2antrr |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( .0. S R ) = { p e. P | ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) } ) |
| 70 |
69
|
eleq2d |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( <" x y "> e. ( .0. S R ) <-> <" x y "> e. { p e. P | ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) } ) ) |
| 71 |
|
fveq1 |
|- ( p = <" x y "> -> ( p ` 0 ) = ( <" x y "> ` 0 ) ) |
| 72 |
71
|
oveq1d |
|- ( p = <" x y "> -> ( ( p ` 0 ) ^ 2 ) = ( ( <" x y "> ` 0 ) ^ 2 ) ) |
| 73 |
|
fveq1 |
|- ( p = <" x y "> -> ( p ` 1 ) = ( <" x y "> ` 1 ) ) |
| 74 |
73
|
oveq1d |
|- ( p = <" x y "> -> ( ( p ` 1 ) ^ 2 ) = ( ( <" x y "> ` 1 ) ^ 2 ) ) |
| 75 |
72 74
|
oveq12d |
|- ( p = <" x y "> -> ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( ( ( <" x y "> ` 0 ) ^ 2 ) + ( ( <" x y "> ` 1 ) ^ 2 ) ) ) |
| 76 |
75
|
eqeq1d |
|- ( p = <" x y "> -> ( ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) <-> ( ( ( <" x y "> ` 0 ) ^ 2 ) + ( ( <" x y "> ` 1 ) ^ 2 ) ) = ( R ^ 2 ) ) ) |
| 77 |
76
|
elrab |
|- ( <" x y "> e. { p e. P | ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) } <-> ( <" x y "> e. P /\ ( ( ( <" x y "> ` 0 ) ^ 2 ) + ( ( <" x y "> ` 1 ) ^ 2 ) ) = ( R ^ 2 ) ) ) |
| 78 |
77
|
a1i |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( <" x y "> e. { p e. P | ( ( ( p ` 0 ) ^ 2 ) + ( ( p ` 1 ) ^ 2 ) ) = ( R ^ 2 ) } <-> ( <" x y "> e. P /\ ( ( ( <" x y "> ` 0 ) ^ 2 ) + ( ( <" x y "> ` 1 ) ^ 2 ) ) = ( R ^ 2 ) ) ) ) |
| 79 |
|
simpr |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> x e. RR ) |
| 80 |
|
elpwi |
|- ( s e. ~P RR -> s C_ RR ) |
| 81 |
80
|
ad4antlr |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> s C_ RR ) |
| 82 |
|
simplr |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> y e. s ) |
| 83 |
81 82
|
sseldd |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> y e. RR ) |
| 84 |
|
s2fv0 |
|- ( x e. RR -> ( <" x y "> ` 0 ) = x ) |
| 85 |
84
|
oveq1d |
|- ( x e. RR -> ( ( <" x y "> ` 0 ) ^ 2 ) = ( x ^ 2 ) ) |
| 86 |
|
s2fv1 |
|- ( y e. RR -> ( <" x y "> ` 1 ) = y ) |
| 87 |
86
|
oveq1d |
|- ( y e. RR -> ( ( <" x y "> ` 1 ) ^ 2 ) = ( y ^ 2 ) ) |
| 88 |
85 87
|
oveqan12d |
|- ( ( x e. RR /\ y e. RR ) -> ( ( ( <" x y "> ` 0 ) ^ 2 ) + ( ( <" x y "> ` 1 ) ^ 2 ) ) = ( ( x ^ 2 ) + ( y ^ 2 ) ) ) |
| 89 |
88
|
eqeq1d |
|- ( ( x e. RR /\ y e. RR ) -> ( ( ( ( <" x y "> ` 0 ) ^ 2 ) + ( ( <" x y "> ` 1 ) ^ 2 ) ) = ( R ^ 2 ) <-> ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) ) |
| 90 |
89
|
anbi2d |
|- ( ( x e. RR /\ y e. RR ) -> ( ( <" x y "> e. P /\ ( ( ( <" x y "> ` 0 ) ^ 2 ) + ( ( <" x y "> ` 1 ) ^ 2 ) ) = ( R ^ 2 ) ) <-> ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) ) ) |
| 91 |
79 83 90
|
syl2anc |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( ( <" x y "> e. P /\ ( ( ( <" x y "> ` 0 ) ^ 2 ) + ( ( <" x y "> ` 1 ) ^ 2 ) ) = ( R ^ 2 ) ) <-> ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) ) ) |
| 92 |
70 78 91
|
3bitrd |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( <" x y "> e. ( .0. S R ) <-> ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) ) ) |
| 93 |
|
simp1 |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> X e. P ) |
| 94 |
|
simp2 |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> Y e. P ) |
| 95 |
|
fveq1 |
|- ( X = Y -> ( X ` 1 ) = ( Y ` 1 ) ) |
| 96 |
95
|
a1i |
|- ( ( X e. P /\ Y e. P ) -> ( X = Y -> ( X ` 1 ) = ( Y ` 1 ) ) ) |
| 97 |
96
|
necon3d |
|- ( ( X e. P /\ Y e. P ) -> ( ( X ` 1 ) =/= ( Y ` 1 ) -> X =/= Y ) ) |
| 98 |
97
|
3impia |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> X =/= Y ) |
| 99 |
93 94 98
|
3jca |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( X e. P /\ Y e. P /\ X =/= Y ) ) |
| 100 |
99
|
ad3antrrr |
|- ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) -> ( X e. P /\ Y e. P /\ X =/= Y ) ) |
| 101 |
100
|
ad2antrr |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( X e. P /\ Y e. P /\ X =/= Y ) ) |
| 102 |
|
eqid |
|- ( ( X ` 1 ) - ( Y ` 1 ) ) = ( ( X ` 1 ) - ( Y ` 1 ) ) |
| 103 |
|
eqid |
|- ( ( Y ` 0 ) - ( X ` 0 ) ) = ( ( Y ` 0 ) - ( X ` 0 ) ) |
| 104 |
|
eqid |
|- ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) |
| 105 |
1 2 3 6 102 103 104
|
rrx2linest2 |
|- ( ( X e. P /\ Y e. P /\ X =/= Y ) -> ( X L Y ) = { p e. P | ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( p ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( p ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) } ) |
| 106 |
101 105
|
syl |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( X L Y ) = { p e. P | ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( p ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( p ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) } ) |
| 107 |
106
|
eleq2d |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( <" x y "> e. ( X L Y ) <-> <" x y "> e. { p e. P | ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( p ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( p ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) } ) ) |
| 108 |
71
|
oveq2d |
|- ( p = <" x y "> -> ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( p ` 0 ) ) = ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( <" x y "> ` 0 ) ) ) |
| 109 |
73
|
oveq2d |
|- ( p = <" x y "> -> ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( p ` 1 ) ) = ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( <" x y "> ` 1 ) ) ) |
| 110 |
108 109
|
oveq12d |
|- ( p = <" x y "> -> ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( p ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( p ` 1 ) ) ) = ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( <" x y "> ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( <" x y "> ` 1 ) ) ) ) |
| 111 |
110
|
eqeq1d |
|- ( p = <" x y "> -> ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( p ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( p ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) <-> ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( <" x y "> ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( <" x y "> ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) |
| 112 |
111
|
elrab |
|- ( <" x y "> e. { p e. P | ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( p ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( p ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) } <-> ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( <" x y "> ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( <" x y "> ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) |
| 113 |
84
|
oveq2d |
|- ( x e. RR -> ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( <" x y "> ` 0 ) ) = ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) ) |
| 114 |
86
|
oveq2d |
|- ( y e. RR -> ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( <" x y "> ` 1 ) ) = ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) |
| 115 |
113 114
|
oveqan12d |
|- ( ( x e. RR /\ y e. RR ) -> ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( <" x y "> ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( <" x y "> ` 1 ) ) ) = ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) ) |
| 116 |
115
|
eqeq1d |
|- ( ( x e. RR /\ y e. RR ) -> ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( <" x y "> ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( <" x y "> ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) <-> ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) |
| 117 |
116
|
anbi2d |
|- ( ( x e. RR /\ y e. RR ) -> ( ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( <" x y "> ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( <" x y "> ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) <-> ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) |
| 118 |
112 117
|
bitrid |
|- ( ( x e. RR /\ y e. RR ) -> ( <" x y "> e. { p e. P | ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( p ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( p ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) } <-> ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) |
| 119 |
79 83 118
|
syl2anc |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( <" x y "> e. { p e. P | ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. ( p ` 0 ) ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( p ` 1 ) ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) } <-> ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) |
| 120 |
107 119
|
bitrd |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( <" x y "> e. ( X L Y ) <-> ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) |
| 121 |
92 120
|
anbi12d |
|- ( ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) /\ x e. RR ) -> ( ( <" x y "> e. ( .0. S R ) /\ <" x y "> e. ( X L Y ) ) <-> ( ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) /\ ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) ) |
| 122 |
121
|
reubidva |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( E! x e. RR ( <" x y "> e. ( .0. S R ) /\ <" x y "> e. ( X L Y ) ) <-> E! x e. RR ( ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) /\ ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) ) |
| 123 |
|
elelpwi |
|- ( ( y e. s /\ s e. ~P RR ) -> y e. RR ) |
| 124 |
1 3
|
prelrrx2 |
|- ( ( x e. RR /\ y e. RR ) -> <" x y "> e. P ) |
| 125 |
124
|
ancoms |
|- ( ( y e. RR /\ x e. RR ) -> <" x y "> e. P ) |
| 126 |
125
|
biantrurd |
|- ( ( y e. RR /\ x e. RR ) -> ( ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) <-> ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) ) ) |
| 127 |
126
|
bicomd |
|- ( ( y e. RR /\ x e. RR ) -> ( ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) <-> ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) ) |
| 128 |
125
|
biantrurd |
|- ( ( y e. RR /\ x e. RR ) -> ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) <-> ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) |
| 129 |
128
|
bicomd |
|- ( ( y e. RR /\ x e. RR ) -> ( ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) <-> ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) |
| 130 |
127 129
|
anbi12d |
|- ( ( y e. RR /\ x e. RR ) -> ( ( ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) /\ ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) <-> ( ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) |
| 131 |
130
|
reubidva |
|- ( y e. RR -> ( E! x e. RR ( ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) /\ ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) <-> E! x e. RR ( ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) |
| 132 |
123 131
|
syl |
|- ( ( y e. s /\ s e. ~P RR ) -> ( E! x e. RR ( ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) /\ ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) <-> E! x e. RR ( ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) |
| 133 |
132
|
expcom |
|- ( s e. ~P RR -> ( y e. s -> ( E! x e. RR ( ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) /\ ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) <-> E! x e. RR ( ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) ) |
| 134 |
133
|
ad2antlr |
|- ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) -> ( y e. s -> ( E! x e. RR ( ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) /\ ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) <-> E! x e. RR ( ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) ) |
| 135 |
134
|
imp |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( E! x e. RR ( ( <" x y "> e. P /\ ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) ) /\ ( <" x y "> e. P /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) <-> E! x e. RR ( ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) ) |
| 136 |
26 33
|
jca |
|- ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) -> ( ( ( X ` 1 ) - ( Y ` 1 ) ) e. RR /\ ( ( X ` 1 ) - ( Y ` 1 ) ) =/= 0 ) ) |
| 137 |
136
|
adantr |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( ( ( X ` 1 ) - ( Y ` 1 ) ) e. RR /\ ( ( X ` 1 ) - ( Y ` 1 ) ) =/= 0 ) ) |
| 138 |
137
|
ad3antrrr |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( ( ( X ` 1 ) - ( Y ` 1 ) ) e. RR /\ ( ( X ` 1 ) - ( Y ` 1 ) ) =/= 0 ) ) |
| 139 |
19
|
ad3antrrr |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( Y ` 0 ) e. RR ) |
| 140 |
22
|
ad3antrrr |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( X ` 0 ) e. RR ) |
| 141 |
139 140
|
resubcld |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( ( Y ` 0 ) - ( X ` 0 ) ) e. RR ) |
| 142 |
11
|
ad3antrrr |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( X ` 1 ) e. RR ) |
| 143 |
142 139
|
remulcld |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( ( X ` 1 ) x. ( Y ` 0 ) ) e. RR ) |
| 144 |
14
|
ad3antrrr |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( Y ` 1 ) e. RR ) |
| 145 |
140 144
|
remulcld |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( ( X ` 0 ) x. ( Y ` 1 ) ) e. RR ) |
| 146 |
143 145
|
resubcld |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) e. RR ) |
| 147 |
|
simplrl |
|- ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) -> R e. RR+ ) |
| 148 |
147
|
ad2antrr |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> R e. RR+ ) |
| 149 |
123
|
expcom |
|- ( s e. ~P RR -> ( y e. s -> y e. RR ) ) |
| 150 |
149
|
ad2antlr |
|- ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) -> ( y e. s -> y e. RR ) ) |
| 151 |
150
|
imp |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> y e. RR ) |
| 152 |
|
eqid |
|- ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) = ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) |
| 153 |
|
eqid |
|- -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) = -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) |
| 154 |
|
eqid |
|- ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) = ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) |
| 155 |
152 153 154
|
itsclquadeu |
|- ( ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) e. RR /\ ( ( X ` 1 ) - ( Y ` 1 ) ) =/= 0 ) /\ ( ( Y ` 0 ) - ( X ` 0 ) ) e. RR /\ ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) e. RR ) /\ R e. RR+ /\ y e. RR ) -> ( E! x e. RR ( ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) <-> ( ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( y ^ 2 ) ) + ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) x. y ) + ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) = 0 ) ) |
| 156 |
138 141 146 148 151 155
|
syl311anc |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( E! x e. RR ( ( ( x ^ 2 ) + ( y ^ 2 ) ) = ( R ^ 2 ) /\ ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) x. x ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. y ) ) = ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) <-> ( ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( y ^ 2 ) ) + ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) x. y ) + ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) = 0 ) ) |
| 157 |
122 135 156
|
3bitrd |
|- ( ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) /\ y e. s ) -> ( E! x e. RR ( <" x y "> e. ( .0. S R ) /\ <" x y "> e. ( X L Y ) ) <-> ( ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( y ^ 2 ) ) + ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) x. y ) + ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) = 0 ) ) |
| 158 |
157
|
ralbidva |
|- ( ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) /\ ( # ` s ) = 2 ) -> ( A. y e. s E! x e. RR ( <" x y "> e. ( .0. S R ) /\ <" x y "> e. ( X L Y ) ) <-> A. y e. s ( ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( y ^ 2 ) ) + ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) x. y ) + ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) = 0 ) ) |
| 159 |
158
|
pm5.32da |
|- ( ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) /\ s e. ~P RR ) -> ( ( ( # ` s ) = 2 /\ A. y e. s E! x e. RR ( <" x y "> e. ( .0. S R ) /\ <" x y "> e. ( X L Y ) ) ) <-> ( ( # ` s ) = 2 /\ A. y e. s ( ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( y ^ 2 ) ) + ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) x. y ) + ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) = 0 ) ) ) |
| 160 |
159
|
reubidva |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> ( E! s e. ~P RR ( ( # ` s ) = 2 /\ A. y e. s E! x e. RR ( <" x y "> e. ( .0. S R ) /\ <" x y "> e. ( X L Y ) ) ) <-> E! s e. ~P RR ( ( # ` s ) = 2 /\ A. y e. s ( ( ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) + ( ( ( Y ` 0 ) - ( X ` 0 ) ) ^ 2 ) ) x. ( y ^ 2 ) ) + ( ( -u ( 2 x. ( ( ( Y ` 0 ) - ( X ` 0 ) ) x. ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ) ) x. y ) + ( ( ( ( ( X ` 1 ) x. ( Y ` 0 ) ) - ( ( X ` 0 ) x. ( Y ` 1 ) ) ) ^ 2 ) - ( ( ( ( X ` 1 ) - ( Y ` 1 ) ) ^ 2 ) x. ( R ^ 2 ) ) ) ) ) = 0 ) ) ) |
| 161 |
55 160
|
mpbird |
|- ( ( ( X e. P /\ Y e. P /\ ( X ` 1 ) =/= ( Y ` 1 ) ) /\ ( R e. RR+ /\ ( X D .0. ) < R ) ) -> E! s e. ~P RR ( ( # ` s ) = 2 /\ A. y e. s E! x e. RR ( <" x y "> e. ( .0. S R ) /\ <" x y "> e. ( X L Y ) ) ) ) |